The invention discloses a preparation method of flat-hair false eyelashes, and relates to the technical field of false eyelashes, the flat-hair false eyelashes comprise three groups of flat-hair pieces, each group of flat-hair pieces is formed by
cutting a substrate through
laser, the three groups of flat-hair pieces are divided into a left piece, a middle piece and a right piece, and the left piece, the middle piece and the right piece are combined to form the complete flat-hair false eyelashes. Three groups of flat hair pieces with different orientations are combined, the growth direction of real eyelashes is simulated, the natural sense is enhanced, a flat stem body
cut by
laser increases the contact area, the fitting degree and the firmness are higher, the eyelashes are lighter and convenient to wear, the wearing comfort is improved, the
color difference is detected through a spectrophotometer, technological
parameter control is strict, and multi-link quality inspection is strict, so that the eyelashes are more attractive in appearance. The defective rate is effectively reduced, the consistency of finished products is guaranteed, a'production-test-feedback-optimization '
closed loop is formed through collection of
consumer feedback, and the product performance and market adaptability are continuously improved.